Neco Model Questions Vol1 2020 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2020 Neco Model Questions Vol1 Chemistry examination.
A 5.00 g sample of a solid mixture contains 60 % (by mass) calcium carbonate \(CaCO_3\) and the remainder sodium carbonate \(Na_2CO_3\). Upon strong heating, both carbonates decompose according to:\n\(CaCO_3 \rightarrow CaO + CO_2\)\n\(Na_2CO_3 \rightarrow Na_2O + CO_2\)\nCalculate (a) the total volume of carbon dioxide gas produced at \(25^{\circ}\text{C}\) and \(1\ \text{atm}\), and (b) the mass of calcium oxide obtained.
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About This Question
This is Neco Model Questions Vol1 2020 Chemistry Question 7. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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